• The Nano can be powered via the Type-C USB connection, 7-12V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.
• Support for external 5V~12V DC power supply, Support power supply by 9V battery.
• The Nano is using the chips ATmega328P and CH340, Replace FT232RL.
• It is a smallest, complete, and breadboard friendly board. It has everything that Diecimila/Duemilanove has (electrically) with more analog input pins and onboard +5V AREF jumper.
• Uses the CH340G instead of the FTDI FT232RL IC which can improve the transfer speed, increase the stability in windows and solve the issues with FTDI drivers bricking non-original chips, ATMEGA328P offers even more programming and data memory space. It also has a pin layout that works well with the Mini or the Basic Stamp (TX, RX, ATN, GND on one side, power, and ground on the other).